Dear Saini Ji
Reference:: Sikh Philosophy Network http://www.sikhphilosophy.net/essays-on-sikhism/1718-concept-of-naam-simran-in-gurmat.html
Profession is a kirti whereas devotion and dhayan is kirat. Kirti is our family and needy people around, a social service but bhakti and dhayan is for ourselves only to break the cycle of reincarnation.
Regards Sahni Mohinder